Will a bad wheel bearing cause abs light to come on?
 

I scanned for codes and all i see is driver side abs speed sensor fault and i had the speed sensor checked and tested and it's working fine so im wondering will a bad wheel bearing cause the abs light to come on? 2006 Audi A8 4.2

If the sensor is confirmed as ok, but you’re still getting an error code for it (what specific error code are you getting?), then you need to check the condition of the wiring harness insulation for the first couple of feet out of the ABS module. It can deteriorate over time and short out, causing false error codes.